BBS RI-S vs OZ Ultimate Alu weight
Across the 4 sizes both are made in, the OZ Ultimate Alu is lighter on average by 5.8 lb per wheel (23.3 lb for a set of four). It is lighter in 4 of 4 sizes.
| Size | BBS RI-S | OZ Ultimate Alu | Difference |
|---|---|---|---|
| 20×8.5 | 24.7 lb (11.20 kg)ET38 | 18.8 lb (8.51 kg)ET61 | 5.9 lb Ultimate Alu lighter |
| 20×9 | 25.1 lb (11.38 kg)ET40 | 19.3 lb (8.77 kg)ET51 | 5.8 lb Ultimate Alu lighter |
| 20×9.5 | 25.4 lb (11.52 kg)ET55 | 19.8 lb (8.97 kg)ET50 | 5.6 lb Ultimate Alu lighter |
| 20×10 | 26.0 lb (11.79 kg)ET30 | 20.0 lb (9.09 kg)ET45 | 6.0 lb Ultimate Alu lighter |
Each cell is the lightest offset made in that size. Weights are manufacturer figures unless marked as measured.
BBS RI-S
Forged, 4 sizes listed here.
Price ↗ All BBS RI-S sizesOZ Ultimate Alu
Forged, 9 sizes listed here.
Price ↗ All OZ Ultimate Alu sizesIs the weight difference worth it?
A pound saved at the wheel counts for more than a pound saved in the car, because it also has to be spun up and slowed down. Here's how much it really matters.